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Progress In Electromagnetics Research Letters
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A BROADBAND GCPW TO STRIPLINE VERTICAL TRANSITION IN LTCC

By B. Zhang, D. Li, W. Liu, and L. Du

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Abstract:
Vertical transition structure between grounded coplanar waveguide (GCPW) and stripline by Low Temperature Co-fired Ceramic (LTCC) technology is presented in this paper. In this structure, the top ground of the stripline is used as the GCPW lower ground, while the signal via goes through the middle ground plane. With increasing vertical signal via height, it can be more widely used in the higher height of multilayer System in Package (SiP) module packaging. The circular openings in the ground plane and additional shield vias around the transmission lines can provide great advantage in the radiation loss and decrease parasitic effects. The measurement results show that the return loss is less than -10 dB from 6 GHz to 35 GHz. Meanwhile, the insertion loss is better than -2 dB up to 28.4 GHz.

Citation:
B. Zhang, D. Li, W. Liu, and L. Du, "A Broadband GCPW to Stripline Vertical Transition in LTCC," Progress In Electromagnetics Research Letters, Vol. 60, 17-21, 2016.
doi:10.2528/PIERL16031005

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